Cell transport Cornell notes

Cell membrane controls what ​ (a)   and exits the cell.

Made mostly of ​ (b)   , the phospholipid heads are ​ (c)   (attracted to water) the tails are ​ (d)   ( repelled by water).

• enters
• phospholipids
• hydrophilic
• hydrophobic

Integral membrane proteins are permanently embedded within the plasma membrane they channel or ​ (a)   molecules across the membrane.

Peripheral membrane proteins are proteins that have only a ​ (b)   association with the membrane. They can be easily removed, which allows them to be involved in cell ​ (c)  

• transport
• temporary
• signaling

• Molecules like to go from ​ (a)   concentration to ​ (b)   concentration!

• They like to be in ​ (c)   another term homeostasis, which means ​ (d)   .

• high
• low
• equilibrium
• balanced

Match the following

• Phospolipid Heads

• Hydrophilic

• Peripheral protein

• help serve with cell signaling

• Phospholipid tails

• Helps cell membrane move substances in and out

• Integral protein

• Hydrophobic

• Low concentration

• Molecules move from High concentration to

1. ​ (a)   = the transport of substances into or out of the cell from an area of ​ (b)   concentration to an area of ​ (c)   concentration ​ (d)   using cell energy

2. Examples of Passive transport: Diffusion Osmosis ​ (e)  

• Passive transport
• high
• low
• without
• Facilitated diffusion

Which is not an example of Passive transport

• Diffusion

• Osmosis

• Facilitated diffusion

• Active transport

​ (a)   = the transport of substances into or out of the cell from an area of ​ (b)   concentration to an area of ​ (c)   concentration ​ (d)   the use of cell energy.

• Active transport
• low
• high
• with

What form of transport is being displayed, using ATP for energy?

The green molecules are moving from a low concentration to high concentration.

• Active Transport

• Diffusion

• Osmosis

• Facilitated diffusion

This picture is an example of?

• Passive transport

• Active transport

Osmosis = movement of ​ (a)   molecules from an area of ​ (b)   concentration to an area of ​ (c)   concentration ​ (d)   the use of cell energy.

• water
• high
• low
• without